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Fix QGLWidget viewport resize on macOS

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This fixes #2092, a long-standing bug where on macOS resizing the window
results in a garbled display.

It seems the seemingly optional child()->makeCurrent call is actually
required on macOS. Enabling it in all cases fixes the resize issue.
This commit is contained in:
Pierre de La Morinerie 2018-03-11 13:50:18 +00:00
parent 5dd8ac99e3
commit c4dbdeba0a
1 changed files with 7 additions and 6 deletions
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13
src/citra_qt/bootmanager.cpp
View file

@ -128,13 +128,14 @@ void GRenderWindow::moveContext() {
}
void GRenderWindow::SwapBuffers() {
#if !defined(QT_NO_DEBUG)
// Qt debug runtime prints a bogus warning on the console if you haven't called makeCurrent
// since the last time you called swapBuffers. This presumably means something if you're using
// QGLWidget the "regular" way, but in our multi-threaded use case is harmless since we never
// call doneCurrent in this thread.
// In our multi-threaded QGLWidget use case we shouldn't need to call `makeCurrent`,
// since we never call `doneCurrent` in this thread.
// However:
// - The Qt debug runtime prints a bogus warning on the console if `makeCurrent` wasn't called
// since the last time `swapBuffers` was executed;
// - On macOS, if `makeCurrent` isn't called explicitely, resizing the buffer breaks.
child->makeCurrent();
#endif
child->swapBuffers();
}